Tsunami alerts were triggered in Alaska, Hawaii, and California. In Hawaii, the tsunami warnings shifted to an advisory, and officials lifted evacuation orders. Much of coastal California was under a tsunami advisory, but areas like Crescent City remained under a tsunami warning early on July 30.

A powerful earthquake off Russia’s coast triggered tsunami waves that reached across the Pacific, prompting evacuations as far as Chile and Peru. Experts explain how sudden shifts in the ocean can send waves traveling more than 500 mph thousands of miles away.